Cringe? It was so funny! And it's actually a dadaistic political protest about nonexistent media visibility of parties outside of the parliament. There are real cringe worthy ones out there too. They interviewed almost everyone, over 1800 videos I think.

"Many earlier studies relied on self-reporting, which doesn’t always yield reliable results. “People tend to overestimate themselves,” says David Veale, a psychiatrist at the South London and Maudsley NHS Foundation Trust. So when Veale and his team set out to settle the score on penile proportions, they decided to compile data from clinicians who followed a standardized measuring procedure."

By "yours" I mean that 5 incher, not "yours" as in the thing that's specifically between your legs. Sorry if I was unclear, but there was certainly a misunderstanding on that end too. Try smaller sizes than yours, and see how they compare to that graph.

edit: you don't check how close figures are of each other, by just checking one figure on the higher end.